158712420243 has 30 divisors (see below), whose sum is σ = 229419222812. Its totient is φ = 97597418880.

The previous prime is 158712420241. The next prime is 158712420287. The reversal of 158712420243 is 342024217851.

It is a happy number.

It is not a de Polignac number, because 158712420243 - 2¹ = 158712420241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (158712420241) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 116613883 + ... + 116615243.

Almost surely, 2^158712420243 is an apocalyptic number.

158712420243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

158712420243 is a deficient number, since it is larger than the sum of its proper divisors (70706802569).

158712420243 is an frugal number, since it uses more digits than its factorization.

158712420243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777 (or 1377 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 158712420243 in words is "one hundred fifty-eight billion, seven hundred twelve million, four hundred twenty thousand, two hundred forty-three".